PEP8 cleanup: fix number of blank lines

Caught by pep8.

Reviewed-by: James Cameron <quozl@laptop.org>
Acked-by: Simon Schampijer <simon@laptop.org>
CC: Aleksey Lim <alsroot@member.fsf.org>

src/sugar/activity/activity.py

@@ -98,6 +98,7 @@ J_DBUS_INTERFACE = 'org.laptop.Journal'
 
 CONN_INTERFACE_ACTIVITY_PROPERTIES = 'org.laptop.Telepathy.ActivityProperties'
 
+
 class _ActivitySession(gobject.GObject):
 
     __gsignals__ = {

src/sugar/graphics/alert.py

@@ -291,6 +291,7 @@ class ConfirmationAlert(Alert):
         self.add_button(gtk.RESPONSE_OK, _('Ok'), icon)
         icon.show()
 
+
 class ErrorAlert(Alert):
     """
     This is a ready-made one button (Ok) alert.
@@ -336,6 +337,7 @@ class ErrorAlert(Alert):
         self.add_button(gtk.RESPONSE_OK, _('Ok'), icon)
         icon.show()
 
+
 class _TimeoutIcon(hippo.CanvasText, hippo.CanvasItem):
     """An icon with a round border"""
     __gtype_name__ = 'AlertTimeoutIcon'

src/sugar/graphics/palettewindow.py

@@ -669,6 +669,7 @@ class Invoker(gobject.GObject):
         if not self.props.cache_palette:
             self.set_palette(None)
 
+
 class WidgetInvoker(Invoker):
 
     def __init__(self, parent=None, widget=None):

src/sugar/presence/activity.py

@@ -463,11 +463,13 @@ class Activity(gobject.GObject):
         _logger.debug('%r: leaving', self)
         self.telepathy_text_chan.Close()
 
+
 class _BaseCommand(gobject.GObject):
     __gsignals__ = {
         'finished': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE,
                      ([object])),
     }
+
     def __init__(self):
         gobject.GObject.__init__(self)
 
@@ -532,6 +534,7 @@ class _ShareCommand(_BaseCommand):
         self._finished = True
         self.emit('finished', error)
 
+
 class _JoinCommand(_BaseCommand):
     def __init__(self, connection, room_handle):
         _BaseCommand.__init__(self)

src/sugar/presence/buddy.py

@@ -144,6 +144,7 @@ class BaseBuddy(gobject.GObject):
 
 class Buddy(BaseBuddy):
     __gtype_name__ = 'PresenceBuddy'
+
     def __init__(self, account_path, contact_id):
         _logger.debug('Buddy.__init__')
         BaseBuddy.__init__(self)

src/sugar/presence/connectionmanager.py

@@ -31,12 +31,14 @@ from telepathy.constants import CONNECTION_STATUS_CONNECTED
 ACCOUNT_MANAGER_SERVICE = 'org.freedesktop.Telepathy.AccountManager'
 ACCOUNT_MANAGER_PATH = '/org/freedesktop/Telepathy/AccountManager'
 
+
 class Connection(object):
     def __init__(self, account_path, connection):
         self.account_path = account_path
         self.connection = connection
         self.connected = False
 
+
 class ConnectionManager(object):
     """Track available telepathy connections"""
 
@@ -108,8 +110,8 @@ class ConnectionManager(object):
                 return account_path
         return None
 
-_connection_manager = None
 
+_connection_manager = None
 def get_connection_manager():
     global _connection_manager
     if not _connection_manager:

src/sugar/presence/presenceservice.py

@@ -37,6 +37,7 @@ from telepathy.interfaces import ACCOUNT, \
                                  CONNECTION
 from telepathy.constants import HANDLE_TYPE_CONTACT
 
+
 _logger = logging.getLogger('sugar.presence.presenceservice')
 
 ACCOUNT_MANAGER_SERVICE = 'org.freedesktop.Telepathy.AccountManager'
@@ -44,6 +45,7 @@ ACCOUNT_MANAGER_PATH = '/org/freedesktop/Telepathy/AccountManager'
 
 CONN_INTERFACE_ACTIVITY_PROPERTIES = 'org.laptop.Telepathy.ActivityProperties'
 
+
 class PresenceService(gobject.GObject):
     """Provides simplified access to the Telepathy framework to activities"""
     __gsignals__ = {

src/sugar/wm.py

@@ -22,6 +22,7 @@ UNSTABLE. Used only internally by Activity and jarabe.
 import gtk
 import logging
 
+
 def _property_get_trapped(window, prop, prop_type):
     gtk.gdk.error_trap_push()
 
@@ -35,6 +36,7 @@ def _property_get_trapped(window, prop, prop_type):
 
     return prop_info
 
+
 def _property_change_trapped(window, prop, prop_type, format, mode, data):
     gtk.gdk.error_trap_push()
 
@@ -83,4 +85,3 @@ def set_activity_id(window, activity_id):
 def set_bundle_id(window, bundle_id):
     _property_change_trapped(window, '_SUGAR_BUNDLE_ID', 'STRING', 8,
                              gtk.gdk.PROP_MODE_REPLACE, bundle_id)
-